Start Your Dream Music Journey Family Concert- Supports the function of distinguishing the left and right channels, and the stereo is circulated in the home. Metal Diaphragm- using 30mm innovative metal diaphragm, multi-band dynamic response, bringing you 3D surround reality. Shocking Bass- large sound cavity with abundant power reserve creates a better bass effect than ordinary speakers. Bluetooth 5.0- long-distance stable and efficient transmission, the transmission distance is up to 10m. HIFI-level Audio Processing Chip- three-stage DRC automatic gain control, advanced dynamic response control, allowing you to listen to real sounds. Large-capacity Battery- 300mAh large-capacity battery, long-lasting battery life, can be used continuously for 10 hours. Simple Style- simple but very elegant, with a variety of colors to choose from, all of which are very suitable for various occasions. TWS works as follows: STEP 1: Turn both Airplane Bluetooth Speakers on STEP 2: Press and hold any one of the two speakers' ""button for 3 seconds. The two speakers will be paired and you will hear a paired tone (LED Light: flashing blue turns solid) STEP 3:Open Bluetooth setting on your device and check that you are paired and connected to ONE of the two airplane speakers (Model:M3). Music should now play from both speakers. Note: If you have any dropouts or don't hear music from both speakers, pause the music for 5 seconds then press play again. Or repeat below pairing process again. Turning off one will turn off both. Power Output: 5W Frequency Response: 20HZ-20KHZ THD: <1% SNR: 80db Speaker Parameter: 4/3W/Dia 36mm Product Size: 2 * 1 1/2 inches Product Weight: 69g What's in the box: M3 unit/USB charging cable/Lanyard/user manual [Palm Size Yet Shockingly Sound] Impressive audio, full & high-def sound. Enjoy impressively full sound quality and robust bass realized through a 5W audio driver and a passive subwoofer. [Wireless Stereo Pairing & Fast Recharge] Double your audio experience with two Dosmix M3 via fast paring. Besides, It has remarkable stamina for something so small. An ultra-high density battery enables 2 hours of non-stop playtime at 80% volume, up to twice times longer than similar-sized portable speakers. And charges in just 1.5 hours using the included Micro USB cable. [Incredibly Compact] About the size of a ring box, this speaker fits into pretty much any pocket or bagyour jacket pocket or the small side pocket of your backpack so you can take your sound literally anywhere you want. Weighed at 120g and sized at 1.9D *1.3H. [Broad Compatibility]Connect pair smartphones, tablets, laptops, Echo Dot and more with any NFC or Bluetooth-enabled device(version 2.1 and above) to start your tunes.